Corrigendum of a Theorem on New Upper Bounds for the α -Indices. Comment on Lenes et al. New Bounds for the α -Indices of Graphs. Mathematics 2020, 8, 1668

Yen-Jen Cheng, Louis Kao and Chih-wen Weng
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Yen-Jen Cheng: Department of Applied Mathematics, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
Louis Kao: Department of Applied Mathematics, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
Chih-wen Weng: Department of Applied Mathematics, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan

Mathematics, 2022, vol. 10, issue 15, 1-3

Abstract: We give a family of counterexamples of a theorem on a new upper bound for the α-indices of graphs in the paper that is mentioned in the title. We also provide a new upper bound for corrigendum.

Keywords: nonnegative matrix; graph; index; ?-index (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
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